rieckeet



(No Model.) H. A. J. RIEOKERT. 2S heets-Sheet1* DOOR CHECK. NO. 450,496. Patented Apr. 14,1891.

ziiar'n/eyx? (No Model.) 2 Sheets-Sheet 2.

" H. A. J. RIEGKERT.

DOOR CHECK.

NO. 450,496. Patented Apr. 14, 18 91.

UNITED STATES HERMAN A. J. RIEOKERT, OF NE\V YORK, N. Y.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 450,496, dated April 14;, 1891.

Application filed August 20, 1890. Serial No. 362,514. (No model.)

To all whom, it may concern:

- Be it known that l, HERMAN A. J. RIECKERT, of the city, county, and State of New York, have invented a new and Improved Door- Oheck, of which the following is a full, clear, and exact description.

The improvement is specially designed for use on doors mounted to swing in both directions and returned to a closed or normal position by springs or other means.

The object of the invention is to provide a new and improved door-check, which is simple and durable in construction and serves to retain the door in a closed position, and also to prevent the door from swinging forward beyond the normal position when opened in either direction.

The invention consists of a casing supporting toggle-levers adapted to press onto the door and connected at their joint with a spring held in the door-casing.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a transverse section of the improvement as applied and in a closed position. Fig. 2 is a like view of the same in an open position. Fig. 3 is a sectional side elevation of the improvementin an open position. Fig. 4: is an inverted plan view of the same with parts in section. Fig. 5 is a side elevation of the same. Fig. 6 is a plan view of a door provided with the improvement. Fig. 7 is an enlarged plan view of the door-plate. Fig.8 is a transverse section of the same on the line y y of Fig. 7. Fig. 9 is a like View of the same on the line as a; of Fig. 7. Fig. 10 is a longitudinal section of the same on the line 2 .2 of Fig. 7, and Fig. 11 is a planview of a door with a double hinge provided with the improvement.

The improved door-check is provided with a casing A, preferably made in a semi-spherical shape, and secured to the under side of the cross-bar of the door-casing B, as illustrated in Figs. 1 and 2. From the front and rear of the casing A project horizontal guide arms 0, loosely engaged by the free ends of the levers D, pivotally connected by a pivot or pintle E, so as to form toggle-levers, the free ends of which are guided horizontally in the guide-arms O. The pivot F. passes through an eye F, secured to a spring G, held in the casing A, and having the tendency to hold the toggle-levers D in an open or inclined position, as illustrated in Fig. 2. The spring G is preferably made in the form of a ball of elastic material, secured at its upper end by suitable means in the semi-spherical casing A, the lower part of the ball projecting beyond the lower open end of the casing when in an open position. It will be seen that when pressure is exerted against either of the inclined toggle-levers D the latter have the tendency to swing upward, the guide-arms 0 being the fulcrum, and the eyeF guiding the pivot E vertically, and at the same time compressing the spring G. 1

On top of the door I is secured a plate H, having its top V=shaped, as is plainly illus trated in Figs. 8 and 9, and its sides curved or rounded off and made slightly conical, as indicated in Figs. 6 to 11. The top of the plate II is located asuitable distance from the hinge or pivot of the door I and directly underneath the toggle-levers D, so that when the door is shut the plate H acts on either of the levers D and causes the same to swing, thus compressing the spring G, as previously described. When the door I is shut, the longitudinal center of the V-shaped top of the plate H supports the joint of the toggle-1e vers, while part of the latter fits onto the sides of the said plate, as is plainly indicated in Fig. 1. In this position the door is held firmly closed by the force of the compressed spring G exerting its pressure on the eye F, so as to hold the joint of the toggle-levers in firm contact with the plate II. When the door is opened, the plate H swings away from the toggle-levers and the latter move into an open position by the force of the compressed spring G. The plate H is made slightly conical, so that when the door swings shut the side of the plate engages the respective toggle-lever throughout its length. (See Fig. 6.) It will be seen that by this device the door is prevented, when swinging shut by the action of door-springs i or other means, from passing beyond a normal shut position, as the toggle-levers D, pressing on the top plate I-I, prevent the door from swinging backward beyond its normal post 1 tion when closed, as is so frequently the case formed by a hollow ball of tleXible material and connected With the joint of the said toggle-levers, substantially as shown and described.

2. Adoor-check comprisingacasing'adapted to be secured to the door-casing,toggle-levers having their free ends guided on the said cas i ing and a spring connected "with the joint of l the said toggle-levers and held in the said cas ing, substantially as described.

3. In a door-check the coinbinatiom with a casing, of toggle-levers having their free ends guided on the said casing, an eye connected with the pivot ol' the said toggle-levers, anda spring held in the said casing and connected with the said eye, substantially as described.

it. in a doorcheck, the combination, With a plate held on the door, of a casing secured to the door-casing opposite the said plate, toggle-levers having their free ends guided on the said casing, an eye connected with the pivot ot' the said toggle-levers, and a spring held in the said casing and connected With the said eye, substantially as described.

ii. In a door-check, the combination, with a door-plate having aV-shapcd top and adapted to be secured to the door, of spring-pressed toggle-levers adapted to be supported from the door-casing and adapted to engage the ll-shaped top of the said door-plate. substantiaily as described.

HERMAN A. J. RIECKERT.

ifi t nesses:

' SEDGWICK. 

